Chair



FIG. 1 is an isometric view of a chair showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a side view, thereof; and,

FIG. 5 is the opposite side view thereof.

The bottom and back view form no part of the claimed design. 

The ornamental design for a chair, as shown and described. 